Re: [CentOS] MS Exchange to CentOs (multiuser)

Frank M. Ramaekers wrote:

Is there a way to get mail from a MS Exchange server that is addressed as user@host.domain.com rather than the user@domain.com so that users on host.domain.com can read their mail on that host (CentOS). (I'm assuming that Exchange needs to know about host.domain.com, somehow.)

The way mailers would know about host.domain.com is to look it up in DNS. They will try for an MX record first, then an A record if the MX doesn't exist. If that directs it to the right place, port 25 is open between them, and the receiving machine is configured properly everything should work.